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2007 E320 - Continuing Problems P2008 code

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2007 E320 - Continuing Problems P2008 code

Old 05-03-2019, 12:23 PM
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2007 E320 - Continuing Problems P2008 code

This is a follow up post to a recent thread here, 2007 E320 w/ 65k. My problems started with the P2015 code- bad swirl motor. Indy mechanic #1 quoted $800 for new swirl motor, and told me my turbo was probably going to go out soon ($4k). In the meantime, I found out about the resistor mod and installed it. I also replaced the cold air intake because it got cracked up pretty bad along the way. Initially, the CELs went off but it still ran a little rough, so I'm thinking the resistor mod has worked. Next day, the CEL comes back on and is now giving me a P2008 code. Supposedly an intake manifold fault??? Talked to Indy mechanic #2, who has the MB (Star?) diagnostic system. He told me he doesn't work on diesels and his best advice is to take it to the dealer for proper diagnostics. He thinks the OBD2 codes don't mean squat with MB, and I need a proper MB diesel tech to troubleshoot. Before I bite the bullet and take it to the dealer, any advice??

Indy mechanic #1 doesn't seem like a great idea. He specializes in foreign cars, but feels like he will just start changing parts until the problem is fixed. I'm hesitant to do this if it is going to involve a new intake manifold.

I could try another resistor, but I've already tried 2. The first one didn't clear the CEL from the P2015 code, but the 2nd one did.

Option #3 is take it to MB Indianapolis.

If anyone knows any indy mechanics is Indianapolis, Louisville, or Cincinnati area, I could probably swing that.

I think the car books around $5k, so I'm thinking $4k or so is my walk away from a repair number. I'd just like to exhaust all options before I take it to a MB dealer. Anything more than the resistor mod is probably beyond my mechanical ability, but if there are sany step by step links to diagnose, I'll probably give them a try.
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